Cement-block machine.



O. N. GHOATE.

CEMENT BLOCK MACHINE. APPLICATION FILED MAR.12; 1907.

947,569. Patented Jan.25, 1910.

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witnesses:

C. N. CHOATE. CEMENT BLOCK MACHINE. APPLICATION FILED MAR. 12, 1907.

Patented Jan.25, 1910.

6 SHEETS-SHEET 2.

wtiiuesscgz G. N. GHOATE.

CEMENT BLOCK MACHINE.

APPLICATION FILED MAR.12, 1907.

Patented Jan. 25, 1910.

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C. N. OHOATE.

CEMENT BLOCK MACHINE.

APPLICATION FILED MAR. 12, 1007.

Patented Jan. 25, 1910.

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CEMENT BLOCK MACHINE. APPLICATION FILED MAR. 12, 1007.

Patented Jan. 25, 1910.

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C. N. CHOATE.

CEMENT BLOCK MACHINE.

APPLICATION FILED MAR.12, 1907.

Patented Jan.25, 1910.

'IIIIIIIIIII win I i 2 a M c) Q n m H m 312 E ANUMW s GRAMAM 50..mrc-umocn rrni) STATES PATENT OFFICE CHARLES N. CHOATE, OF WOODSTOCK,ONTARIO, CANADA, ASSIGNOR OF ONE-THIRD TO WALTER C. REAN AND ONE-THIRDTO SAMUEL TAGGART, OF WOODSTOCK,

CANADA.

CEMENT-BLOCK MACHINE.

Specification of Letters Patent.

Patented Jan. 25, 1910.

To all whom it may concern:

Be it known that I, Ci-mnnns 1*. Cnoa'rn, a subject of the King of GreatBritain and Ireland, residing at \Voodstock, in the lrovince of ()ntarioand Dominion of Canada, have invented certain new and usefulImprovements in Cement-Block Machines, of which the following is aspecification, reference being had therein to the accompanying drawings.

The invention relates particularly to cement block machines of theface-down type, and consists in the novel construction of the machine,in the peculiar construction and combination of its various parts, andin certain details of construction, as will be more fully hereinafterset forth and illustrated.

In the dra'\vings,-Figure 1 is a side elevation of a machine embodyingmy invention; Fig. 2 is an end view; Fig. 3 is a plan view; FigsA to Sinclusive are detached perspective views of parts of the machine; Fig. 9is a sectional perspective view of a modified form of core-support; Fig.10 is a view in elevation of an end portion of the block machine, withthe mold in section, showing the application of the core-supportillustrated in Fig. 9; Fig. 11 is a detached perspective view of thepallet-board; Fig. 12 is a similar View of the adjusting means in themold ends; Fig. 13 is a sectional perspective view of one of the moldsides; Fig. 14 is a section taken on line u:;u of Fig. 13; Figs. 15 and16 are detached perspective views of parts of the mold; and Fig. 17 is asection taken on line y z of F 13.

In construction, the block machine comprises a main supporting frame 1,consisting of a pair of parallelly-arranged and inverted U-bars 2,mounted upon base sections 3, the latter being preferably invertedT-bars, as shown, and the free ends of the supporting bars beingthreaded and engaging apertured lugs 4, secured to a web 5 of the basesections. Nuts 6 engage the threaded portions of the supporting barsupon opposite sides of the lugs to hold the same in place. This form ofconnection between the parts of the supporting frame affords means foradjusting each bar, so as to make the support, as an entirety, perfectlylevel for the receipt of the mold. The support is further strengthenedby tie-bars or brace-rods 7, a pair being arranged on each side of themachine, as indicated in Fi 1, the rods of each pair extending from acent all supporting section 8 clamped to the bar to the base sections 3,and havin offset portions 9 at their free ends, extending through websof the base members and held thereto by nuts 10. For the purpose ofproviding an additional locking or securing means for the mold sidesduring the operation of tamping, I provide a central clamp 1.2,in thisinstance composed of a pair of rocking 1l1lllS,- j0lll'lltllCtl inbearings 13 depending from the supporting section 8. This form of clampleaves the center of the supporting frame open, for a purpose to behereinafter set forth, and at the same time forms the additional lockingmeans for the molds, as previously set forth.

Zletrepresents the mold proper, comprising sides 15 and ends 16, themold parts being arranged, for a purpose hereinafter set forth, forlateral movement in a horizontal plane.

17 represents a pallet-board for the machine, forming the mold bottom,and seated upon detachable supporting bars 18 (Fig. 7), arranged uponthe top of the main supporting frame.

The mold is especially designed for forming a multiple of blocks of anyparticular length desired, the block faces being formed upon thepallet-board, so that when the blocks are removed they will rest upontheir face portions during the operation of curing, permitting themoisture to settle at the bottom of the block, thus producing a superiorfinish for the block facing. As it is frequently desired to produce arock facing for the block, the pallet-board is constructed with afacing, as 19, to give the rock appearance, and is further provided witha marginal flange 20,recessed along its sides, as at 21, to receive the.partition plates,--which serves the double function of collecting themoisture about the rock face, and producing a well-defined and clean-cutedge for the block, giving it an attractive appearance. The flange alsoserves to protect the block edge during the process of curing,preventing the same from being chipped or otherwise marred.

The pallet-board being employed to form the facing of the block, theusual openings in the latteare 'fOIll'lOCl by cores arranged at thesides of the block, and I have herein shown the cores as carried by themold sides, which construction is practical by reason of the fact thatthe sides are adapted to move,

as previously set forth, outwardly from the pallet in a horizontalplane, thus permitting the cores to be properly drawn.

In Fig. 13 is shown the preferable formof mold side employed, consistingof two complementary sections 22 and 23, formed by dividing the sidelongitudinally near its middle portion, the sections being connected bysuitable hinges, as 24. Upon each side section are carried thepartitions 25, the latter being in complementary sections adapted tomeet upon the closing of the mold to divide the material therein intothe proper lengths, and upon the upper section are arranged the cores 26and 27 any number being employed, according to the openings desired tobe formed in the block. The cores 26 are adapted to form the openingsextending through the block, while the cores 27 a form the recesses inthe block sides.

The cores and partitions described are necessarily shifted in theirpositions'in the formation of different lengths of blocks, and for thispurpose I have provided means for detaching and adjusting the parts uponthe mold sides. The cores 26 are preferably hollow castings, throughwhich a bolt, as 27, extends to and through an opening, as 28, in themold side, and is secured by a nut, as 29,a series of these openings 28being formed in the mold, as indicated in Fig. 1. The cores 27 areattached to the mold in a similar manner by bolts 80, any number ofthese cores being used as desired, made in different lengths, as shownin Fig. 13. The cores 26 also preferably carry integral therewith a coresection, as 31, similar in form to the core 27 and also a partitionsection, as 32. The correspodning partition sections upon the lowersection 28 of the mold are secured by means of bolts 34 to the mold inthe same manner as the parts just described.

For the purpose of providing a smooth external surface for the blockside, I preferably employ in connection with the cores and partitions alining for the mold, made, as indicated, of detachable sections, as 35.Some of the lining sections, as 36, are carried by the partitionsections and cores, while the others are independent and are secured tothe adjoining parts by a tongue and groove connection, as indicated bythe numerals 37 and 38. By this method of formation, the cores andpartitions may be detached, shifted longitudinally into the desiredposition, and the other parts shifted, added, or withdrawn, to form thedesired block. Where the lining is employed in connection with the coresand other parts described, it is cut away at its lower edge upon thelower side section to form a space 39 in which the side of thepallet-board extends, so that the wall of the block extending upwardlyfrom the pallet-board will be unbroken, except for the recessespurposely formed therein. The ends of the mold 16 are preferablyconnected to and supported by a plate, as 40 (Fig. 5), attached to ahorizontal plate section 41, provided with tubular bearings 42, throughwhich extend the main supporting bars 2, the ends being adapted to slidelongitudinally of the support during the operation of opening andclosing the mold, as hereinafter set forth.

The operating mechanism for shifting the sides and ends is of thefollowing construction: A pair of vertically-extending levers, as 43, isarranged at each end of the machine, their lower ends being pivoted tothe base sections, and having pivotal connections at their upper endswith the mold sides, forming the supports for the latter. Slidingbox-shaped sleeve sections 44 are arranged upon the levers, andverticallyreciprocating plate sections 45,one at each end of themachine,have a sliding engagement with the vertical portions of thesupport and a pivotal connection with the sleeves. The operatingmechanlsm further includes preferably two crossed :operating levers 46and 47, connections, as

48, between said levers and the reciprocating sections 45, and anoperative connection between said reciprocating sections and the ends,the mechanism described being adapted to shift both the ends and sidessimultaneously to open and close the mold. The supporting levers 43, forthe purpose of producing the horizontal movement of the mold sidesdesired, are angle-shaped in form, and provided at their upper ends withstraight vertical extensions or sections 50, and to limit the extent ofswinging movement of the sides upon their supports a stop, as 51 isemployed (shown in detail in Fig. 8), secured to each mold side, andcarrying stop members 52, engaging upon opposite sides of the supportinglever, as shown in Fig. 2. The sleeves 44 are provided each with a pairof rollers, as 53, that contact with the supporting levers during thetravel of the sleeve, thus reducing the friction to a minimum, and eachcarries a pivot member, as 54 (Fig. 4). The reciprocating sections 45(Fig. 6) comprise each a vertical section 59, having tubular bearings 60engaging the support rods, and an inwardly-extending section 61 providedwith a transverse tubular bearing 62, and also a pair of apertured lugs63 upon the main section and in proximity to the horizontal portion. Aconnecting bolt, as 64, extends through the bearing 62 of thereciprocating section, and through the pivot members 54 upon thesleeves, forming an operative connection between the latter and thereciprocating member. The bolt is also proportioned to extend somelittlev distance at each end beyond its bearing, so that adjustingwashers,

as (35, may be employed, by means of which the supporting levers 43 maybe drawn closer together, or spread farther apart, thereby increasing ordiminishing the width of the mold as may be desired.

The main operating levers previously referred to are preferably two innumber, so that the machine may be operated at either end, as desired,the levers being pivoted at their inner ends to the base sections 3, asshown in Fig. 1, and projecting in opposite directions beyond themachine ends, forming operating handles. The lovers are pivotallyconnected at their center by a bolt (56, and one of the levers isslotted, as at (57, to permit of their operation. The connection I8 isin the form of a rod, pivoted one to each lever near the end of themachine, and at its upper end between the cars (33 upon thereciprocating member 45.

The operative connection between the mold ends and the operatingmechanism described comprises a pair of rods, as (58, for

each end, secured at their outer ends to the plate sections ll, andhaving a sliding engagement at their opposite ends in bearings 69 uponthe transverse portions of the supporting rods 2.

70 represent set-screws employed for clamping the rods 68 to thebearings (59, and permitting such adjustment of the mold ends as may bedesired.

In Fig. 10 I have shown a modified form of core-support that may beemployed in connection with the machine when it is not desired to employthe pallet-board for facing the block. It consists of a supporting plateproper 71, of a length to extend from end to end of the mold, upon whichare located vertically-projecting cores 72 (openings, as 73, beingformed in the pallet-board 7-]: to permit of the extension of the coresinto the mold), and angle-shaped brackets 75 at the ends of thecore-support, slotted as at 70 to receive the connecting rods etS,attached at their ends 77 to the reciprocating sections 45. Upon theoperation of the machine this modified form of support reciprocatesvertically, this movement being permissible by reason of the center ofthe main supporting frame being open for that purpose.

Upon the raising or depression of either of the main operating levers,according as the mold is desired to be opened or closed, the moldsections are moved simultaneously, and if the mold is being opened thecores and partitions are withdrawn, permitting the block to be removedupon the palletboard. Upon the reverse movement of a single-operatinglever the parts are closed.

During the filling of the mold, the upper sections of the mold sides maybe thrown backward, carrying with them the cores, which permits of thefilling of half the mold with the cementitious material, and thenecessary tamping, without interfering with the cores, thus facilitatingthe formation of the block to a considerable extent. The hinged sides ofthe mold are then thrown into place, and the central clamp upon thesupporting frame moved into proper engagement, when the completion ofthe filling of the mold may be effected.

Attention is directed to the fact that one of the essential features ofthe invention is the movement of the mold sides in a horizontal plane,and while I have shown and described one form of mechanism that willaccomplish this result 1 do not desire to be limited to the same,although I deem it preterable in use, by reason of its simplicity ofconstruction. Further attention is directed to the fact that tllll'll'lgthe closing of the mold, the vertically-reciprocating sleeve membersupon the levers 43 travel upwardly upon said levers upon the verticalportions 50, in which position these sleeves serve as locks, holding thelevers from outward spreading movement. The mold sides are thusautomatically locked in their closed position.

As illustrated, the machine is of a construction to be operated ateither end, as set forth, but it will be obvious that only a singleoperating lever may be used if desired.

Locking means may also be used for preventing movement of the operatingmechanism after the mold sides and ends have been brought together intheir closed position. The means employed is in the form of a dependinglever 78, pivoted upon the handle section of either or both of the mainoperating levers, and of a length to abut against the base section 3when the lever is in its elevated position. The parts are shown lockedin Fig. l, and for unlocking it is merely required to move the lockinglever 78 out of contact with the support, when the lever may bedepressed.

\Vhat I claim as my invention is,

1. In a block molding apparatus. a supporting frame comprisingparallelly disposed inverted U-shaped bars, end walls sleeved upon thehorizontal portions of said bars, reciprocating members slidably mountedupon the vertical portions of said bars, and connections between saidreciprocating members and said end walls.

In a block molding machine, a supporting frame including verticallydisposed end portions and horizontally disposed top bars, end wallssleeved on said top bars and slidable thereon. swinging side wallsmounted on the supporting frame, and a single means for actuating saidside and end walls to open and close the mold.

3. In a block molding machine, a supporting frame including verticallydisposed end portions and horizontally disposed top bars,

end walls sleeved on said top bars and slidable thereon, swinging sidewalls carried by said supporting frame, reciprocating members slidablymounted on the end portion of the supporting frame, and connectionsbetween said reciprocating members and said side and end walls.

a. In a block molding machine, a supporting frame, rocking supportspivoted to said frame, mold walls carried by said supports, sleevesengaging said rocking supports, and means for shifting said sleeves.

In a. block molding machine, a support-- ing frame, rocking supportspivoted to said frame, mold walls carried by said supports, areciprocating member mounted in said frame, and sleeves carried by saidreciprocating member and engaging said rocking supports.

(3. In a block molding machine, a supporting frame, rocking supportspivoted to said frame, mold walls carried by said supports, adjustablyconnected sleeves engaging said rocking supports, and means for shiftingsaid sleeves.

7. In a block molding machine, a supporting frame, rocking supportspivoted to said frame, mold walls carried by said rocking supports, areciprocating member mounted in said frame, sleeves carried by saidreciprocating member and engaging said rocking supports, and means foradjusting said sleeves relatively to each other.

8. In a block molding machine, a supporting frame, end walls mountedthereon, rocking supports pivoted to said supporting frame, side wallspivotally supported upon said rocking supports and means for actuatingsaid rocking supports to move the side walls into and out of operativeposition.

9. In a block molding machine, a supporting frame including end portionsand spaced horizontally disposed top bars, the pallet board supportresting upon the top bars of said frame, end walls sleeved upon the topbars of said frame and slidable thereon, and swinging side walls carriedby said supporting frame.

10. In a block molding machine, a sup porting frame, rocking supportscarried thereby, mold side walls carried by said supports, end wallsmovably supported in said supporting frame, reciprocating membersmounted in the ends of the supporting frame, sleeves adjustably securedto said reciprocating members and engaging said rocking supports, andlinks adjustably connecting said reciprocating members and said endwalls.

11. In a block molding machine, the combination with a supporting frame,of a mold having movable sides, rocking supports pivotally connectedto'mold sides, a reciprocating member upon the supporting frame, meansfor reciprocating said member, and

operative connections between said reciprocating member and the rockingsupports.

12. In a block molding machine, the combination with a mold havinglaterally movable sides, of rocking supports for and having pivotalconnections with the sides, whereby said sides may always lie in aVertical plane during the movement of said supports, and means forshifting said rocking supoorts.

13. In a block molding machine, the combination with a supporting frameof a mold having movable side and end walls, rocking supports for andhaving pivotal connections with the side walls, whereby said side wallsmay always be maintained in a vertical plane during the movementthereof, and actuating mechanism for shifting said rocking supports andsimultaneously shifting the mold ends.

. 14. In a block molding machine, the combination with a mam supportingframe, of a mold having movable ends and sldes, a

pair of rocking levers at each end of the frame upon which the moldsides are mounted, reciprocating members upon the frame ends,connections between each member and its respective pair of rock levers,an operative connection between each mold end and the adjoiningreciprocating, member, a main operating lever pivoted to the supportingframe, and connections between said lever and the reciprocating members.

15. In a block molding machine, the combination with a support, of apair of rock levers at each end thereof, a mold having its sidespivotally mounted upon the rock levers, means for rocking said levers,and adjusting means for varying the distance between each pair oflevers.

16. In a block molding machine, the combination with a main supportingframe, of a vertically reciprocating member at each end thereof, a pairof rock levers adjoining, and pivotally connected, to each reciprocatingmember, two crossed operating levers pivoted to the frame and extendingeach beyond said frame at one end forming an operating handle, anoperative connection between said levers, a connection between each ofsaid levers and the adjoining reciprocating member, and a mold havingits sides mounted upon the rock levers.

17. In a block molding machine, the combination with a support, of amold thereon having laterally-movable ends and sides, a pair of rocklevers at each end of the support upon which the mold sides are mounted,a traveling member for each of the levers, reciprocating members at thesupport ends, adjustable connections between the traveling andreciprocating members, and means for simultaneously actuating thereciprocating members.

com risin end Walls and side walls said I 20. In at block moldin machine:1 mold b a y c; 1

side Walls being each longitudinally divided into complementarysections, and complementary cores carried by the upper sections of thesides.

19. In a block molding machine, a mold comprising end and side Walls,said side walls each divided longitudinally into sections hingedtogether, and complementary cores earned by the upper sections of thesides.

having ends, and sides each divided longitudinally into sections hingedtogether, and a core or cores carried by the upper sections 15 of thesides.

In testimony whereof I ailix my signature in presence 01 two Witnesses.

CHARLES N. CHOATE. \Vitnesses J. G. WVALLACE, A. M. YOUNG.

